/**
 * Copyright (C) 2007, 2008 Carnegie Mellon University and others.
 *
 * This file is part of Plural.
 *
 * Plural is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * Plural is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Plural; if not, see <http://www.gnu.org/licenses>.
 *
 * Linking Plural statically or dynamically with other modules is
 * making a combined work based on Plural. Thus, the terms and
 * conditions of the GNU General Public License cover the whole
 * combination.
 *
 * In addition, as a special exception, the copyright holders of Plural
 * give you permission to combine Plural with free software programs or
 * libraries that are released under the GNU LGPL and with code
 * included in the standard release of Eclipse under the Eclipse Public
 * License (or modified versions of such code, with unchanged license).
 * You may copy and distribute such a system following the terms of the
 * GNU GPL for Plural and the licenses of the other code concerned.
 *
 * Note that people who make modified versions of Plural are not
 * obligated to grant this special exception for their modified
 * versions; it is their choice whether to do so. The GNU General
 * Public License gives permission to release a modified version
 * without this exception; this exception also makes it possible to
 * release a modified version which carries forward this exception.
 */
package edu.cmu.cs.syncorwim.simple.provider;

import edu.cmu.cs.crystal.annotations.FailingTest;
import edu.cmu.cs.plural.annot.ClassStates;
import edu.cmu.cs.plural.annot.Pure;
import edu.cmu.cs.plural.annot.State;
import edu.cmu.cs.plural.annot.Use;

@FailingTest(1)
@ClassStates({@State(name="alive", inv="share(elements)"),
		      @State(name="STILLOPEN", inv="is_closed == true")})
public class Issue66Test {

	private FakeList elements;
	@SuppressWarnings("unused")
	private boolean is_closed;
	
	@Pure(requires="STILLOPEN", ensures="STILLOPEN", use=Use.FIELDS)
	public boolean is_empty()
	{	
		return elements.size() <= 0; // Error! Should require us to unpack!
	}
}

class FakeList {
	@Pure int size() {return 0;}
}
